30 POPULAR ENTOMOLOGY. 



maxillary palpi long, the last joint hatchet-shaped; legs long; 

 tarsi five-jointed. 



This Order has but one family Blattidce. It is fre- 

 quently comprised in Orthoptera. 



ORDER V. ORTHOPTERA, Olivier. 



Characters. Wings two, folded longitudinally ; elytra coriaceous, 

 one folding over the margin of the other longitudinally ; mouth with 

 transversely movable jaws. 



1. Achetidce. Wings and wing-covers held horizontally 



when at rest ; wings of large size, forming long fila- 

 ments extending beyond the body ; antennae often 

 longer than the body ; body robust ; eyes large ; body 

 terminated by setae (bristles) ; tarsi slender ; colour 

 generally brown. Locality various, according to the 

 species. 



2. Gryllidcc. Wings and wing- covers disposed like a 



sloping roof, or deflexed when at rest ; antennae very 

 long and slender ; wings very large and delicate ; tarsi 

 broad and fleshy ; size large ; colour generally green. 

 Locality, plants. 



3. Locustidce. Wings and wing- covers deflexed ; antennae 



